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Finding the Fourth Proportional to 563,245.52, 777,275.49 and 305,127.39

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Solution

The fourth proportional to 563,245.52, 777,275.49 and 305,127.39 is: 421,073.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,245.52 : 777,275.49 = 305,127.39 : x
  2. Step 2: Convert to fraction form
    563,245.52/777,275.49 = 305,127.39/x
  3. Step 3: Cross multiply
    563,245.52x = 777,275.49 × 305,127.39
  4. Step 4: Simplify right side
    563,245.52x = 237,168,041,574.67
  5. Step 5: Solve for x
    x = 237,168,041,574.67/563,245.52
  6. Step 6: Final answer
    x = 421,073.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.